As its done in the past with other big screen adaptations of its comics, Marvel has gone ahead and put together a comic book prelude for The Avengers for fans to enjoy. This one, called “Fury’s Big Week,” will be eight issues with the first released for free on Marvel’s comics app this Sunday.

Yes, you read that right. It’s going to be free. That’s nice. Too bad the rest of the issues won’t be. Oh well.

Here’s the scoop from the official press release:

“We’ve worked hand-in-hand with Marvel Studios to create an exciting story set in the Marvel Cinematic Universe that sets the stage perfectly for the most anticipated film of the summer,” said Axel Alonso, Marvel Editor in Chief. “Now, for the first time. you’ll find out just what happened to some of Earth’s Mightiest Heroes on the road to Marvel’s The Avengers.”

What is the Avengers Initiative? And what are the secrets of S.H.I.E.L.D. Director Nick Fury? The answers arrive in Marvel’s The Avengers Prelude: Fury’s Big Week and the first issue is free this Sunday only on the Marvel Comics app!